gstrings

util/strings/strings.go

@@ -34,3 +34,17 @@ func HasSuffixAny(str string, suffix ...string) bool {
 func HasHTTPPrefix(str string) bool {
 	return HasPrefixAny(strings.ToLower(str), "http://", "https://")
 }
+
+// Replace str from a list of old, new string
+// pairs. Replacements are performed in the order they appear in the
+// target string, without overlapping matches. The old string
+// comparisons are done in argument order.
+//
+// Replace panics if given an odd number of oldNew arguments.
+func Replace(str string, oldNew ...string) string {
+	if len(oldNew) == 0 {
+		return str
+	}
+	r := strings.NewReplacer(oldNew...)
+	return r.Replace(str)
+}

util/strings/strings_test.go

@@ -31,3 +31,23 @@ func TestHasSuffix(t *testing.T) {
 	assert.True(t, HasSuffixAny("a.txt", ".log", ".txt"))
 	assert.False(t, HasSuffixAny("a.log", ".log1", ".txt1"))
 }
+
+func TestReplace(t *testing.T) {
+	testCases := []struct {
+		input    string
+		oldNew   []string
+		expected string
+	}{
+		{"Hello, world!", []string{"world", "Go"}, "Hello, Go!"},
+		{"foo bar foo", []string{"foo", "baz", "bar", "qux"}, "baz qux baz"},
+		{"abc", []string{"x", "y"}, "abc"}, // No replacement
+		{"", []string{}, ""},               // Empty string and no replacements
+	}
+
+	for _, testCase := range testCases {
+		result := Replace(testCase.input, testCase.oldNew...)
+		if result != testCase.expected {
+			t.Errorf("For input '%s' with replacements %v, expected '%s', but got '%s'", testCase.input, testCase.oldNew, testCase.expected, result)
+		}
+	}
+}